Mongdee, Thitiporn, Lamai Romyen, and Chardchai Udomkijmongkol. “Happiness at Work Affecting Performance Effectiveness of the Personnel of Sakon Nakhon Provincial Administration Department, Interior Ministry”. Interdisciplinary Academic and Research Journal 2, no. 5 (October 13, 2022): 691–712. Accessed May 19, 2024. https://so03.tci-thaijo.org/index.php/IARJ/article/view/263980.